Drillco® Combined Centre Drill & Countersink, #8, 5/16" Small Diameter, 3/4" Large Diameter, High Speed Steel Suction Guns carrying cleanly to job sites

carrying cleanly to job sites

Fully ground flutes for consistent hole sizes and fast chip evacuation

For mild steel and ferrous metal

Compatible with all 1800 Series and 1900 Series large angle grinders (may only be used with 7" cup wheel)

Drillco® Combined Centre Drill & Countersink, #8, 5/16" Small Diameter, 3/4" Large Diameter, High Speed Steel Suction Guns carrying cleanly to job sitesWhen metal parts are machined on centres as in turning or cylindrical grinding, it is always necessary to drill and countersink the centre holes to serve as seats or bearings in the machine centres Specifications Material High Speed Steel Number Size #8 Small Diameter 5 16" Decimal Size 0. 3125" Large Diameter 3 4" Countersink Angle 60 Overall Length 6" Finish Bright Type Plain Country Of Origin China